Update app.py

app.py

@@ -28,6 +28,13 @@ def start_iteration(a):
             num_set.append(temp+temp-1)
         temp = temp + 1
     return(num_set)
+
+def even_index(str1):
+    str_lst = []
+    for i in range(len(str1)):
+        if i % 2 == 0 :
+           str_lst.append(str1[i]) 
+    return(str_lst)
         
 
 st.markdown("<h3 style='text-align:center; font-size:24px;'>Mathematical and String Operations</h3>", unsafe_allow_html=True)
@@ -49,4 +56,11 @@ if radio_bar == description2 :
     if all_data:
         result = start_iteration(first_num)
         st.success(result)
-    
+
+if radio_bar == description3 :
+    st.markdown("<h6 style='text-align:center; font-size:16px;'>"+description3+"</h6>", unsafe_allow_html=True)
+    str1 = st.text_input(label="Enter the string",value=0)
+    all_data = st.button("Show result")
+    if all_data:
+        result = even_index(str1)
+        st.success(result)